By P.S. Mariano
It's transparent that electron move chemisty is now some of the most energetic parts of chemical research. Advances in Electron move Chemistry has been designed to permit scientists who're constructing new wisdom during this quickly increasing quarter to explain their latest examine findings. This quantity will serve these drawn to studying approximately present breakthroughs during this speedily increasing region of chemical learn.
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SO2 - -- SO2 -~ , - ' ~ 3 ~ - ~ C F 3 ~ + BrSO2" CF3 ~ + SO2-~ - - - - - - CF3SO2- (12) (C. Eft. 60%) Furthermore, MedLebielle and Saveant have uncovered elegant examples of electrochemically induced nucleophilic substitution reactions of perfluoroaUcyl halides. The reaction mechanism is a slightly modified version of the classical SRN~ pathway in which initiation occurs by dissociative electron transfer, and the route does not involve the intermediacy of the anion radical of the substrate as shown in Scheme 6.
54. 55. 56. 57. 58. 59. ; Goodman, J. ; Wayner, D. D. M. J. Am. Chem. Soc. 1998, 120, 5832-5833. ; Roth, H. ; Schilling, M. L. M. J. Am. Chem. Soc. 1985, 107, 1079-1080. ; Kat6, M. J. Am. Chem. Soc. 1971, 93, 4948-4950. Gilbert, J. ; Butler, J. R. J. Am. Chem. Soc. 1970, 92, 2168-2169. ; Borden, W. T. J. Am. Chem. Soc. 1987, 109, 5330-5336. ; Kikuchi, O. Tetrahedron Lett. 1990, 31, 51755178. ; Khudyakov, I. ; McGarry, E E; Turro, N. ; Roth, H. D. J. Am. Chem. Soc. 1994, 116, 6933-6934. ; Buchkremer, K.
11. Chemical Fluorination Using Fluorinating Reagents . . Conclusions . . . . . . . . . . . . . . . Acknowledgments . . . . . . . . . . . . . References . . . . . . . . . . . . . . . 1. 62 62 62 63 66 75 76 77 82 . 83 84 84 88 88 89 89 90 92 93 95 96 106 107 116 119 122 123 123 123 INTRODUCTION E l e m e n t a l fluorine was first prepared by M o s s i a n m o r e than a century ago. 0 vs. 35 vs. 20/~ for hydrogen). A carbon-fluorine bond is also stronger than a carbon-hydrogen bond (485 vs.